Comments on: Line Follower Robot – without using Microcontroller

By: Anonymous

Anonymous — Fri, 24 Apr 2020 15:53:56 +0000

In reply to anil joshi. Use BD139 transistor

By: Haidee Carpio Sarmiento

Haidee Carpio Sarmiento — Sun, 02 Apr 2017 09:28:00 +0000

can i use a dc motor?

By: anil joshi

anil joshi — Tue, 28 Feb 2017 16:26:00 +0000

sir motors are rotating but ldr doesnt work and transistors are also get heated so whats the problem pls tell me sir??

By: Ligo George

Ligo George — Sun, 04 Dec 2016 07:43:00 +0000

In reply to Purbasssh. Nope, it is not related to parallel port or computer. It is a simple line follower robot.

By: Purbasssh

Purbasssh — Sat, 03 Dec 2016 19:01:00 +0000

Hello sir is this project related to parallel port car driving and if it is how will I be able to make the car move because I can’t start running behind it to make it stop if I connnect it with the battery directly neither I’m allowed to use Adriano plz reply fast

By: Ligo George

Ligo George — Thu, 01 Dec 2016 05:12:00 +0000

In reply to omkar raut. Yes, you can us BC548

By: omkar raut

omkar raut — Wed, 30 Nov 2016 12:57:00 +0000

What will happen if i use bc548 instead of bc547. Plz reply fast. I dont have bc 547. And its difficult to find bc 547.

By: Ligo George

Ligo George — Wed, 30 Nov 2016 05:08:00 +0000

In reply to K. It is not good to control the speed using resistors. You can try using BC107, it will support more current.

By: K

Mon, 28 Nov 2016 22:12:00 +0000

In reply to K. What motor specs did you use?

By: K

Mon, 28 Nov 2016 22:08:00 +0000

In reply to Ligo George. I don't know because the kit I bought didn't gave specs for the motors. It is working but it is too fast. I tried putting resistors to slow it down but it is still too fast (with 2N2222A)